121019101 has 8 divisors (see below), whose sum is σ = 139224704. Its totient is φ = 103042800.

The previous prime is 121019081. The next prime is 121019111. The reversal of 121019101 is 101910121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121019101 - 2⁹ = 121018589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121019111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56190 + ... + 58303.

It is an arithmetic number, because the mean of its divisors is an integer number (17403088).

Almost surely, 2^121019101 is an apocalyptic number.

It is an amenable number.

121019101 is a deficient number, since it is larger than the sum of its proper divisors (18205603).

121019101 is a wasteful number, since it uses less digits than its factorization.

121019101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114651.

The product of its (nonzero) digits is 18, while the sum is 16.

The square root of 121019101 is about 11000.8681930109. The cubic root of 121019101 is about 494.6347691859.

Adding to 121019101 its reverse (101910121), we get a palindrome (222929222).

The spelling of 121019101 in words is "one hundred twenty-one million, nineteen thousand, one hundred one".